./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2173db9a2274c43e93688b39a8ab5256e9054c31e7330b4f58c34c545dbb4480 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:12:11,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:12:11,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:12:11,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:12:11,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:12:11,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:12:11,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:12:11,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:12:11,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:12:11,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:12:11,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:12:11,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:12:11,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:12:11,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:12:11,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:12:11,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:12:11,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:12:11,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:12:11,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:12:11,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:12:11,808 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:12:11,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:12:11,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:12:11,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:12:11,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:12:11,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:12:11,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:12:11,820 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:12:11,820 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:12:11,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:12:11,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:12:11,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:12:11,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:12:11,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:12:11,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:12:11,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:12:11,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:12:11,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:12:11,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:12:11,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:12:11,831 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:12:11,832 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-11-21 16:12:11,856 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:12:11,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:12:11,857 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:12:11,857 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:12:11,858 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:12:11,858 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:12:11,859 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:12:11,859 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:12:11,860 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:12:11,860 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:12:11,860 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:12:11,860 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:12:11,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:12:11,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:12:11,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:12:11,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:12:11,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:12:11,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:12:11,871 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-11-21 16:12:11,871 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:12:11,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:12:11,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:12:11,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:12:11,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:12:11,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:12:11,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:12:11,873 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:12:11,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:12:11,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:12:11,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:12:11,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:12:11,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:12:11,875 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:12:11,875 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:12:11,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:12:11,876 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2173db9a2274c43e93688b39a8ab5256e9054c31e7330b4f58c34c545dbb4480 [2022-11-21 16:12:12,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:12:12,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:12:12,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:12:12,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:12:12,206 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:12:12,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2022-11-21 16:12:15,368 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:12:15,625 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:12:15,626 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c [2022-11-21 16:12:15,634 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/data/5a6135d33/b2e1899d5d484f628a5a5e6c7fdc562e/FLAG3af1339de [2022-11-21 16:12:15,649 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/data/5a6135d33/b2e1899d5d484f628a5a5e6c7fdc562e [2022-11-21 16:12:15,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:12:15,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:12:15,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:12:15,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:12:15,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:12:15,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:15,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73fe82a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15, skipping insertion in model container [2022-11-21 16:12:15,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:15,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:12:15,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:12:15,918 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[2987,3000] [2022-11-21 16:12:15,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:12:15,939 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:12:15,975 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/sv-benchmarks/c/weaver/popl20-two-queue.wvr.c[2987,3000] [2022-11-21 16:12:15,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:12:15,995 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:12:15,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15 WrapperNode [2022-11-21 16:12:15,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:12:15,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:12:15,997 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:12:15,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:12:16,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,075 INFO L138 Inliner]: procedures = 24, calls = 43, calls flagged for inlining = 13, calls inlined = 15, statements flattened = 420 [2022-11-21 16:12:16,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:12:16,077 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:12:16,077 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:12:16,077 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:12:16,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,115 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,117 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:12:16,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:12:16,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:12:16,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:12:16,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (1/1) ... [2022-11-21 16:12:16,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:12:16,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:12:16,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:12:16,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:12:16,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:12:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-21 16:12:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-21 16:12:16,221 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-21 16:12:16,221 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-21 16:12:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:12:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:12:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:12:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:12:16,223 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:12:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-21 16:12:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:12:16,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:12:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:12:16,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:12:16,227 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:12:16,408 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:12:16,411 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:12:17,317 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:12:17,928 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:12:17,928 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-21 16:12:17,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:12:17 BoogieIcfgContainer [2022-11-21 16:12:17,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:12:17,938 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:12:17,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:12:17,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:12:17,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:12:15" (1/3) ... [2022-11-21 16:12:17,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466c15cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:12:17, skipping insertion in model container [2022-11-21 16:12:17,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:12:15" (2/3) ... [2022-11-21 16:12:17,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466c15cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:12:17, skipping insertion in model container [2022-11-21 16:12:17,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:12:17" (3/3) ... [2022-11-21 16:12:17,971 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-two-queue.wvr.c [2022-11-21 16:12:17,984 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-21 16:12:17,994 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:12:17,994 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 67 error locations. [2022-11-21 16:12:17,995 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:12:18,177 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-21 16:12:18,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 336 transitions, 688 flow [2022-11-21 16:12:18,442 INFO L130 PetriNetUnfolder]: 13/334 cut-off events. [2022-11-21 16:12:18,443 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-21 16:12:18,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343 conditions, 334 events. 13/334 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 507 event pairs, 0 based on Foata normal form. 0/254 useless extension candidates. Maximal degree in co-relation 248. Up to 2 conditions per place. [2022-11-21 16:12:18,453 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 336 transitions, 688 flow [2022-11-21 16:12:18,469 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 311 places, 316 transitions, 644 flow [2022-11-21 16:12:18,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:12:18,499 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c91f77b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:12:18,500 INFO L358 AbstractCegarLoop]: Starting to check reachability of 117 error locations. [2022-11-21 16:12:18,510 INFO L130 PetriNetUnfolder]: 0/29 cut-off events. [2022-11-21 16:12:18,510 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:12:18,510 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:18,511 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:18,512 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:18,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:18,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1778820541, now seen corresponding path program 1 times [2022-11-21 16:12:18,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:18,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104841002] [2022-11-21 16:12:18,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:18,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:18,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:18,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:18,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104841002] [2022-11-21 16:12:18,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104841002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:18,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:18,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:18,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506655267] [2022-11-21 16:12:18,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:18,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:18,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:18,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:18,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:18,896 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 336 [2022-11-21 16:12:18,904 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 316 transitions, 644 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:18,904 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:18,904 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 336 [2022-11-21 16:12:18,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:19,225 INFO L130 PetriNetUnfolder]: 47/465 cut-off events. [2022-11-21 16:12:19,226 INFO L131 PetriNetUnfolder]: For 47/70 co-relation queries the response was YES. [2022-11-21 16:12:19,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 579 conditions, 465 events. 47/465 cut-off events. For 47/70 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1509 event pairs, 35 based on Foata normal form. 20/410 useless extension candidates. Maximal degree in co-relation 314. Up to 88 conditions per place. [2022-11-21 16:12:19,236 INFO L137 encePairwiseOnDemand]: 285/336 looper letters, 17 selfloop transitions, 2 changer transitions 4/267 dead transitions. [2022-11-21 16:12:19,236 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 267 transitions, 584 flow [2022-11-21 16:12:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:19,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:19,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 866 transitions. [2022-11-21 16:12:19,262 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8591269841269841 [2022-11-21 16:12:19,263 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 866 transitions. [2022-11-21 16:12:19,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 866 transitions. [2022-11-21 16:12:19,267 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:19,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 866 transitions. [2022-11-21 16:12:19,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 288.6666666666667) internal successors, (866), 3 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,286 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,287 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,290 INFO L175 Difference]: Start difference. First operand has 311 places, 316 transitions, 644 flow. Second operand 3 states and 866 transitions. [2022-11-21 16:12:19,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 267 transitions, 584 flow [2022-11-21 16:12:19,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 267 transitions, 576 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:12:19,307 INFO L231 Difference]: Finished difference. Result has 268 places, 263 transitions, 534 flow [2022-11-21 16:12:19,310 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=266, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=268, PETRI_TRANSITIONS=263} [2022-11-21 16:12:19,318 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -43 predicate places. [2022-11-21 16:12:19,318 INFO L495 AbstractCegarLoop]: Abstraction has has 268 places, 263 transitions, 534 flow [2022-11-21 16:12:19,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:19,320 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:19,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:12:19,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:19,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:19,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1740061556, now seen corresponding path program 1 times [2022-11-21 16:12:19,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:19,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875888930] [2022-11-21 16:12:19,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:19,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:19,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:19,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:19,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:19,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875888930] [2022-11-21 16:12:19,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875888930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:19,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:19,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:19,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828359916] [2022-11-21 16:12:19,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:19,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:19,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:19,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:19,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:19,448 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 336 [2022-11-21 16:12:19,451 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 263 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,451 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:19,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 336 [2022-11-21 16:12:19,452 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:19,565 INFO L130 PetriNetUnfolder]: 17/352 cut-off events. [2022-11-21 16:12:19,565 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-21 16:12:19,567 INFO L83 FinitePrefix]: Finished finitePrefix Result has 393 conditions, 352 events. 17/352 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 761 event pairs, 8 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 355. Up to 31 conditions per place. [2022-11-21 16:12:19,568 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 14 selfloop transitions, 2 changer transitions 0/262 dead transitions. [2022-11-21 16:12:19,569 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 262 transitions, 564 flow [2022-11-21 16:12:19,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:19,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:19,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2022-11-21 16:12:19,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8174603174603174 [2022-11-21 16:12:19,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2022-11-21 16:12:19,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2022-11-21 16:12:19,573 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:19,573 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2022-11-21 16:12:19,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,579 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,580 INFO L175 Difference]: Start difference. First operand has 268 places, 263 transitions, 534 flow. Second operand 3 states and 824 transitions. [2022-11-21 16:12:19,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 262 transitions, 564 flow [2022-11-21 16:12:19,582 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 262 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:19,586 INFO L231 Difference]: Finished difference. Result has 263 places, 262 transitions, 532 flow [2022-11-21 16:12:19,587 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=263, PETRI_TRANSITIONS=262} [2022-11-21 16:12:19,588 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -48 predicate places. [2022-11-21 16:12:19,588 INFO L495 AbstractCegarLoop]: Abstraction has has 263 places, 262 transitions, 532 flow [2022-11-21 16:12:19,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,589 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:19,590 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:19,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:12:19,590 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:19,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1398973286, now seen corresponding path program 1 times [2022-11-21 16:12:19,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:19,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273807263] [2022-11-21 16:12:19,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:19,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:19,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:19,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:19,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:19,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273807263] [2022-11-21 16:12:19,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273807263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:19,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:19,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:19,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550583130] [2022-11-21 16:12:19,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:19,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:19,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:19,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:19,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:19,657 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 336 [2022-11-21 16:12:19,658 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 262 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,659 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:19,659 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 336 [2022-11-21 16:12:19,663 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:19,784 INFO L130 PetriNetUnfolder]: 17/351 cut-off events. [2022-11-21 16:12:19,784 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-21 16:12:19,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 392 conditions, 351 events. 17/351 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 760 event pairs, 8 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 347. Up to 31 conditions per place. [2022-11-21 16:12:19,787 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 14 selfloop transitions, 2 changer transitions 0/261 dead transitions. [2022-11-21 16:12:19,787 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 261 transitions, 562 flow [2022-11-21 16:12:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:19,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:19,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2022-11-21 16:12:19,790 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8174603174603174 [2022-11-21 16:12:19,790 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2022-11-21 16:12:19,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2022-11-21 16:12:19,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:19,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2022-11-21 16:12:19,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,796 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,797 INFO L175 Difference]: Start difference. First operand has 263 places, 262 transitions, 532 flow. Second operand 3 states and 824 transitions. [2022-11-21 16:12:19,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 261 transitions, 562 flow [2022-11-21 16:12:19,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 261 transitions, 558 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:19,803 INFO L231 Difference]: Finished difference. Result has 262 places, 261 transitions, 530 flow [2022-11-21 16:12:19,804 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=262, PETRI_TRANSITIONS=261} [2022-11-21 16:12:19,804 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -49 predicate places. [2022-11-21 16:12:19,805 INFO L495 AbstractCegarLoop]: Abstraction has has 262 places, 261 transitions, 530 flow [2022-11-21 16:12:19,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,806 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:19,806 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:19,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:12:19,806 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:19,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:19,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1491650501, now seen corresponding path program 1 times [2022-11-21 16:12:19,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:19,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468480232] [2022-11-21 16:12:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:19,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:19,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:19,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:19,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:19,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468480232] [2022-11-21 16:12:19,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468480232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:19,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:19,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:19,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045957307] [2022-11-21 16:12:19,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:19,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:19,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:19,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:19,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:19,882 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 336 [2022-11-21 16:12:19,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 261 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:19,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:19,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 336 [2022-11-21 16:12:19,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:20,023 INFO L130 PetriNetUnfolder]: 17/350 cut-off events. [2022-11-21 16:12:20,023 INFO L131 PetriNetUnfolder]: For 4/6 co-relation queries the response was YES. [2022-11-21 16:12:20,024 INFO L83 FinitePrefix]: Finished finitePrefix Result has 391 conditions, 350 events. 17/350 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 760 event pairs, 8 based on Foata normal form. 0/307 useless extension candidates. Maximal degree in co-relation 339. Up to 31 conditions per place. [2022-11-21 16:12:20,025 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 14 selfloop transitions, 2 changer transitions 0/260 dead transitions. [2022-11-21 16:12:20,026 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 260 transitions, 560 flow [2022-11-21 16:12:20,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:20,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:20,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2022-11-21 16:12:20,028 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8174603174603174 [2022-11-21 16:12:20,028 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2022-11-21 16:12:20,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2022-11-21 16:12:20,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:20,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2022-11-21 16:12:20,032 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,034 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,035 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,035 INFO L175 Difference]: Start difference. First operand has 262 places, 261 transitions, 530 flow. Second operand 3 states and 824 transitions. [2022-11-21 16:12:20,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 260 transitions, 560 flow [2022-11-21 16:12:20,038 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 260 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:20,041 INFO L231 Difference]: Finished difference. Result has 261 places, 260 transitions, 528 flow [2022-11-21 16:12:20,042 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=528, PETRI_PLACES=261, PETRI_TRANSITIONS=260} [2022-11-21 16:12:20,043 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -50 predicate places. [2022-11-21 16:12:20,043 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 260 transitions, 528 flow [2022-11-21 16:12:20,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,044 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:20,044 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:20,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:12:20,044 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:20,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:20,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1503051710, now seen corresponding path program 1 times [2022-11-21 16:12:20,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:20,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424371544] [2022-11-21 16:12:20,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:20,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:20,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:20,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424371544] [2022-11-21 16:12:20,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424371544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:20,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:20,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080800285] [2022-11-21 16:12:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:20,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:20,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:20,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:20,095 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:20,097 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 260 transitions, 528 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,097 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:20,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:20,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:20,230 INFO L130 PetriNetUnfolder]: 22/436 cut-off events. [2022-11-21 16:12:20,230 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2022-11-21 16:12:20,231 INFO L83 FinitePrefix]: Finished finitePrefix Result has 491 conditions, 436 events. 22/436 cut-off events. For 9/11 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1225 event pairs, 5 based on Foata normal form. 0/379 useless extension candidates. Maximal degree in co-relation 431. Up to 27 conditions per place. [2022-11-21 16:12:20,233 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 17 selfloop transitions, 2 changer transitions 0/266 dead transitions. [2022-11-21 16:12:20,233 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 266 transitions, 581 flow [2022-11-21 16:12:20,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:20,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:20,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 836 transitions. [2022-11-21 16:12:20,236 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8293650793650794 [2022-11-21 16:12:20,236 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 836 transitions. [2022-11-21 16:12:20,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 836 transitions. [2022-11-21 16:12:20,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:20,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 836 transitions. [2022-11-21 16:12:20,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.6666666666667) internal successors, (836), 3 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,243 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,243 INFO L175 Difference]: Start difference. First operand has 261 places, 260 transitions, 528 flow. Second operand 3 states and 836 transitions. [2022-11-21 16:12:20,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 266 transitions, 581 flow [2022-11-21 16:12:20,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 266 transitions, 577 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:20,249 INFO L231 Difference]: Finished difference. Result has 261 places, 260 transitions, 532 flow [2022-11-21 16:12:20,250 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=261, PETRI_TRANSITIONS=260} [2022-11-21 16:12:20,251 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -50 predicate places. [2022-11-21 16:12:20,251 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 260 transitions, 532 flow [2022-11-21 16:12:20,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,252 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:20,252 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:20,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:12:20,252 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:20,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash -713685408, now seen corresponding path program 1 times [2022-11-21 16:12:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:20,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260094701] [2022-11-21 16:12:20,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:20,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:20,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:20,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:20,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260094701] [2022-11-21 16:12:20,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260094701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:20,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:20,300 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:20,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26794097] [2022-11-21 16:12:20,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:20,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:20,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:20,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:20,303 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:20,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 260 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,305 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:20,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:20,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:20,438 INFO L130 PetriNetUnfolder]: 25/439 cut-off events. [2022-11-21 16:12:20,438 INFO L131 PetriNetUnfolder]: For 13/15 co-relation queries the response was YES. [2022-11-21 16:12:20,439 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 439 events. 25/439 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1209 event pairs, 13 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 267. Up to 45 conditions per place. [2022-11-21 16:12:20,441 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 12 selfloop transitions, 2 changer transitions 0/259 dead transitions. [2022-11-21 16:12:20,441 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 259 transitions, 558 flow [2022-11-21 16:12:20,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:20,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2022-11-21 16:12:20,444 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8234126984126984 [2022-11-21 16:12:20,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 830 transitions. [2022-11-21 16:12:20,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 830 transitions. [2022-11-21 16:12:20,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:20,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 830 transitions. [2022-11-21 16:12:20,447 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,449 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,451 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,451 INFO L175 Difference]: Start difference. First operand has 261 places, 260 transitions, 532 flow. Second operand 3 states and 830 transitions. [2022-11-21 16:12:20,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 259 transitions, 558 flow [2022-11-21 16:12:20,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 259 transitions, 556 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:12:20,457 INFO L231 Difference]: Finished difference. Result has 261 places, 259 transitions, 532 flow [2022-11-21 16:12:20,457 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=257, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=532, PETRI_PLACES=261, PETRI_TRANSITIONS=259} [2022-11-21 16:12:20,461 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -50 predicate places. [2022-11-21 16:12:20,461 INFO L495 AbstractCegarLoop]: Abstraction has has 261 places, 259 transitions, 532 flow [2022-11-21 16:12:20,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:20,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:20,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:12:20,463 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:20,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1235749882, now seen corresponding path program 1 times [2022-11-21 16:12:20,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:20,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472770298] [2022-11-21 16:12:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:20,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:20,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:20,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:20,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472770298] [2022-11-21 16:12:20,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472770298] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:20,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:20,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:20,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563668951] [2022-11-21 16:12:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:20,513 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:20,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:20,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:20,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:20,515 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 336 [2022-11-21 16:12:20,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 259 transitions, 532 flow. Second operand has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:20,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 336 [2022-11-21 16:12:20,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:20,628 INFO L130 PetriNetUnfolder]: 25/438 cut-off events. [2022-11-21 16:12:20,628 INFO L131 PetriNetUnfolder]: For 12/14 co-relation queries the response was YES. [2022-11-21 16:12:20,630 INFO L83 FinitePrefix]: Finished finitePrefix Result has 507 conditions, 438 events. 25/438 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1207 event pairs, 13 based on Foata normal form. 0/380 useless extension candidates. Maximal degree in co-relation 439. Up to 48 conditions per place. [2022-11-21 16:12:20,631 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 15 selfloop transitions, 2 changer transitions 0/258 dead transitions. [2022-11-21 16:12:20,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 258 transitions, 564 flow [2022-11-21 16:12:20,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:20,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:20,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 824 transitions. [2022-11-21 16:12:20,634 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8174603174603174 [2022-11-21 16:12:20,635 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 824 transitions. [2022-11-21 16:12:20,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 824 transitions. [2022-11-21 16:12:20,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:20,636 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 824 transitions. [2022-11-21 16:12:20,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 274.6666666666667) internal successors, (824), 3 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,640 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,640 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,640 INFO L175 Difference]: Start difference. First operand has 261 places, 259 transitions, 532 flow. Second operand 3 states and 824 transitions. [2022-11-21 16:12:20,641 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 258 transitions, 564 flow [2022-11-21 16:12:20,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 258 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:20,646 INFO L231 Difference]: Finished difference. Result has 260 places, 258 transitions, 530 flow [2022-11-21 16:12:20,647 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=526, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=260, PETRI_TRANSITIONS=258} [2022-11-21 16:12:20,647 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -51 predicate places. [2022-11-21 16:12:20,648 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 258 transitions, 530 flow [2022-11-21 16:12:20,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,648 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:20,649 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:20,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:12:20,649 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:20,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:20,650 INFO L85 PathProgramCache]: Analyzing trace with hash 596332739, now seen corresponding path program 1 times [2022-11-21 16:12:20,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:20,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533131768] [2022-11-21 16:12:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:20,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:20,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:20,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:20,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:20,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533131768] [2022-11-21 16:12:20,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533131768] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:20,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:20,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:20,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865310861] [2022-11-21 16:12:20,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:20,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:20,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:20,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:20,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:20,693 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:20,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 258 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:20,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:20,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:20,863 INFO L130 PetriNetUnfolder]: 31/511 cut-off events. [2022-11-21 16:12:20,864 INFO L131 PetriNetUnfolder]: For 19/20 co-relation queries the response was YES. [2022-11-21 16:12:20,865 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 511 events. 31/511 cut-off events. For 19/20 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1765 event pairs, 10 based on Foata normal form. 0/444 useless extension candidates. Maximal degree in co-relation 522. Up to 35 conditions per place. [2022-11-21 16:12:20,867 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 18 selfloop transitions, 2 changer transitions 0/264 dead transitions. [2022-11-21 16:12:20,868 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 264 transitions, 588 flow [2022-11-21 16:12:20,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 835 transitions. [2022-11-21 16:12:20,871 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8283730158730159 [2022-11-21 16:12:20,872 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 835 transitions. [2022-11-21 16:12:20,872 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 835 transitions. [2022-11-21 16:12:20,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:20,873 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 835 transitions. [2022-11-21 16:12:20,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 278.3333333333333) internal successors, (835), 3 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,879 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,879 INFO L175 Difference]: Start difference. First operand has 260 places, 258 transitions, 530 flow. Second operand 3 states and 835 transitions. [2022-11-21 16:12:20,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 264 transitions, 588 flow [2022-11-21 16:12:20,885 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 264 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:20,889 INFO L231 Difference]: Finished difference. Result has 260 places, 258 transitions, 534 flow [2022-11-21 16:12:20,890 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=260, PETRI_TRANSITIONS=258} [2022-11-21 16:12:20,894 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -51 predicate places. [2022-11-21 16:12:20,894 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 258 transitions, 534 flow [2022-11-21 16:12:20,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,895 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:20,895 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:20,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:12:20,896 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:20,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:20,896 INFO L85 PathProgramCache]: Analyzing trace with hash -634965492, now seen corresponding path program 1 times [2022-11-21 16:12:20,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:20,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456371428] [2022-11-21 16:12:20,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:20,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:20,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:20,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:20,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456371428] [2022-11-21 16:12:20,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456371428] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:20,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:20,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:20,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383264156] [2022-11-21 16:12:20,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:20,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:20,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:20,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:20,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:20,968 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:20,970 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 258 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:20,970 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:20,970 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:20,970 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:21,117 INFO L130 PetriNetUnfolder]: 31/528 cut-off events. [2022-11-21 16:12:21,118 INFO L131 PetriNetUnfolder]: For 22/24 co-relation queries the response was YES. [2022-11-21 16:12:21,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 634 conditions, 528 events. 31/528 cut-off events. For 22/24 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1821 event pairs, 18 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 334. Up to 65 conditions per place. [2022-11-21 16:12:21,122 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 13 selfloop transitions, 2 changer transitions 0/257 dead transitions. [2022-11-21 16:12:21,122 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 257 transitions, 562 flow [2022-11-21 16:12:21,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:21,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:21,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2022-11-21 16:12:21,125 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8234126984126984 [2022-11-21 16:12:21,125 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 830 transitions. [2022-11-21 16:12:21,125 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 830 transitions. [2022-11-21 16:12:21,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:21,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 830 transitions. [2022-11-21 16:12:21,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,131 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,131 INFO L175 Difference]: Start difference. First operand has 260 places, 258 transitions, 534 flow. Second operand 3 states and 830 transitions. [2022-11-21 16:12:21,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 257 transitions, 562 flow [2022-11-21 16:12:21,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 257 transitions, 560 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:12:21,138 INFO L231 Difference]: Finished difference. Result has 260 places, 257 transitions, 534 flow [2022-11-21 16:12:21,138 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=530, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=534, PETRI_PLACES=260, PETRI_TRANSITIONS=257} [2022-11-21 16:12:21,139 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -51 predicate places. [2022-11-21 16:12:21,139 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 257 transitions, 534 flow [2022-11-21 16:12:21,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,140 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:21,140 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:21,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:12:21,141 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:21,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:21,142 INFO L85 PathProgramCache]: Analyzing trace with hash -1219844330, now seen corresponding path program 1 times [2022-11-21 16:12:21,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:21,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710747289] [2022-11-21 16:12:21,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:21,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:21,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:21,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:21,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710747289] [2022-11-21 16:12:21,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710747289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:21,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:21,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:21,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447692349] [2022-11-21 16:12:21,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:21,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:21,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:21,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:21,225 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:21,226 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 257 transitions, 534 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,226 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:21,226 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:21,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:21,356 INFO L130 PetriNetUnfolder]: 31/527 cut-off events. [2022-11-21 16:12:21,356 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-21 16:12:21,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 628 conditions, 527 events. 31/527 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1832 event pairs, 18 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 543. Up to 63 conditions per place. [2022-11-21 16:12:21,361 INFO L137 encePairwiseOnDemand]: 334/336 looper letters, 13 selfloop transitions, 1 changer transitions 0/256 dead transitions. [2022-11-21 16:12:21,362 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 256 transitions, 560 flow [2022-11-21 16:12:21,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:21,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 829 transitions. [2022-11-21 16:12:21,364 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8224206349206349 [2022-11-21 16:12:21,365 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 829 transitions. [2022-11-21 16:12:21,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 829 transitions. [2022-11-21 16:12:21,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:21,365 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 829 transitions. [2022-11-21 16:12:21,395 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,399 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,399 INFO L175 Difference]: Start difference. First operand has 260 places, 257 transitions, 534 flow. Second operand 3 states and 829 transitions. [2022-11-21 16:12:21,399 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 256 transitions, 560 flow [2022-11-21 16:12:21,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 256 transitions, 556 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:21,405 INFO L231 Difference]: Finished difference. Result has 259 places, 256 transitions, 530 flow [2022-11-21 16:12:21,406 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=528, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=255, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=530, PETRI_PLACES=259, PETRI_TRANSITIONS=256} [2022-11-21 16:12:21,407 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -52 predicate places. [2022-11-21 16:12:21,407 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 256 transitions, 530 flow [2022-11-21 16:12:21,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,408 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:21,408 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:21,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:12:21,410 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:21,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:21,411 INFO L85 PathProgramCache]: Analyzing trace with hash 1378539870, now seen corresponding path program 1 times [2022-11-21 16:12:21,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:21,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337582804] [2022-11-21 16:12:21,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:21,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:21,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:21,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:21,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:21,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337582804] [2022-11-21 16:12:21,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337582804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:21,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:21,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:21,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251614340] [2022-11-21 16:12:21,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:21,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:21,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:21,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:21,522 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:21,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 256 transitions, 530 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,524 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:21,524 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:21,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:21,656 INFO L130 PetriNetUnfolder]: 31/526 cut-off events. [2022-11-21 16:12:21,656 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-21 16:12:21,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 627 conditions, 526 events. 31/526 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1829 event pairs, 18 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 543. Up to 65 conditions per place. [2022-11-21 16:12:21,660 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 13 selfloop transitions, 2 changer transitions 0/255 dead transitions. [2022-11-21 16:12:21,660 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 255 transitions, 558 flow [2022-11-21 16:12:21,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:21,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:21,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2022-11-21 16:12:21,663 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8234126984126984 [2022-11-21 16:12:21,663 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 830 transitions. [2022-11-21 16:12:21,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 830 transitions. [2022-11-21 16:12:21,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:21,664 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 830 transitions. [2022-11-21 16:12:21,666 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,668 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,669 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,669 INFO L175 Difference]: Start difference. First operand has 259 places, 256 transitions, 530 flow. Second operand 3 states and 830 transitions. [2022-11-21 16:12:21,669 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 255 transitions, 558 flow [2022-11-21 16:12:21,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 255 transitions, 557 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:12:21,675 INFO L231 Difference]: Finished difference. Result has 259 places, 255 transitions, 531 flow [2022-11-21 16:12:21,676 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=527, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=531, PETRI_PLACES=259, PETRI_TRANSITIONS=255} [2022-11-21 16:12:21,676 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -52 predicate places. [2022-11-21 16:12:21,676 INFO L495 AbstractCegarLoop]: Abstraction has has 259 places, 255 transitions, 531 flow [2022-11-21 16:12:21,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:21,677 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:21,677 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:21,677 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:12:21,678 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:21,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:21,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1880804087, now seen corresponding path program 1 times [2022-11-21 16:12:21,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:21,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335377827] [2022-11-21 16:12:21,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:21,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:22,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:22,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:22,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335377827] [2022-11-21 16:12:22,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335377827] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:22,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:22,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:12:22,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93694534] [2022-11-21 16:12:22,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:22,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:12:22,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:12:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:22,233 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 232 out of 336 [2022-11-21 16:12:22,234 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 255 transitions, 531 flow. Second operand has 6 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:22,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 232 of 336 [2022-11-21 16:12:22,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:22,676 INFO L130 PetriNetUnfolder]: 271/1119 cut-off events. [2022-11-21 16:12:22,677 INFO L131 PetriNetUnfolder]: For 122/153 co-relation queries the response was YES. [2022-11-21 16:12:22,680 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1753 conditions, 1119 events. 271/1119 cut-off events. For 122/153 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 6366 event pairs, 198 based on Foata normal form. 0/939 useless extension candidates. Maximal degree in co-relation 1670. Up to 468 conditions per place. [2022-11-21 16:12:22,685 INFO L137 encePairwiseOnDemand]: 324/336 looper letters, 44 selfloop transitions, 10 changer transitions 0/253 dead transitions. [2022-11-21 16:12:22,685 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 253 transitions, 635 flow [2022-11-21 16:12:22,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:12:22,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:12:22,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1446 transitions. [2022-11-21 16:12:22,689 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7172619047619048 [2022-11-21 16:12:22,689 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1446 transitions. [2022-11-21 16:12:22,689 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1446 transitions. [2022-11-21 16:12:22,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:22,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1446 transitions. [2022-11-21 16:12:22,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 241.0) internal successors, (1446), 6 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 336.0) internal successors, (2352), 7 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,698 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 336.0) internal successors, (2352), 7 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,699 INFO L175 Difference]: Start difference. First operand has 259 places, 255 transitions, 531 flow. Second operand 6 states and 1446 transitions. [2022-11-21 16:12:22,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 253 transitions, 635 flow [2022-11-21 16:12:22,702 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 253 transitions, 631 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:22,705 INFO L231 Difference]: Finished difference. Result has 260 places, 253 transitions, 543 flow [2022-11-21 16:12:22,706 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=543, PETRI_PLACES=260, PETRI_TRANSITIONS=253} [2022-11-21 16:12:22,707 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -51 predicate places. [2022-11-21 16:12:22,707 INFO L495 AbstractCegarLoop]: Abstraction has has 260 places, 253 transitions, 543 flow [2022-11-21 16:12:22,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 233.83333333333334) internal successors, (1403), 6 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,717 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:22,717 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:22,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:12:22,717 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:22,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:22,718 INFO L85 PathProgramCache]: Analyzing trace with hash 648118875, now seen corresponding path program 1 times [2022-11-21 16:12:22,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:22,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032842081] [2022-11-21 16:12:22,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:22,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:22,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:22,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032842081] [2022-11-21 16:12:22,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032842081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:22,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:22,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:22,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220076355] [2022-11-21 16:12:22,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:22,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:22,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:22,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:22,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:22,784 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:22,786 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 253 transitions, 543 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,786 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:22,786 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:22,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:22,890 INFO L130 PetriNetUnfolder]: 31/523 cut-off events. [2022-11-21 16:12:22,891 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-21 16:12:22,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 633 conditions, 523 events. 31/523 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1800 event pairs, 18 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 598. Up to 63 conditions per place. [2022-11-21 16:12:22,894 INFO L137 encePairwiseOnDemand]: 334/336 looper letters, 13 selfloop transitions, 1 changer transitions 0/252 dead transitions. [2022-11-21 16:12:22,894 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 252 transitions, 569 flow [2022-11-21 16:12:22,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:22,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 829 transitions. [2022-11-21 16:12:22,897 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8224206349206349 [2022-11-21 16:12:22,897 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 829 transitions. [2022-11-21 16:12:22,897 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 829 transitions. [2022-11-21 16:12:22,898 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:22,898 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 829 transitions. [2022-11-21 16:12:22,899 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.3333333333333) internal successors, (829), 3 states have internal predecessors, (829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,902 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,903 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,903 INFO L175 Difference]: Start difference. First operand has 260 places, 253 transitions, 543 flow. Second operand 3 states and 829 transitions. [2022-11-21 16:12:22,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 252 transitions, 569 flow [2022-11-21 16:12:22,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 252 transitions, 549 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-21 16:12:22,909 INFO L231 Difference]: Finished difference. Result has 256 places, 252 transitions, 523 flow [2022-11-21 16:12:22,909 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=521, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=523, PETRI_PLACES=256, PETRI_TRANSITIONS=252} [2022-11-21 16:12:22,910 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -55 predicate places. [2022-11-21 16:12:22,911 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 252 transitions, 523 flow [2022-11-21 16:12:22,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,911 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:22,912 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:22,912 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:12:22,912 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:22,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:22,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1561077119, now seen corresponding path program 1 times [2022-11-21 16:12:22,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:22,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601525494] [2022-11-21 16:12:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:22,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:22,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:22,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:22,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:22,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601525494] [2022-11-21 16:12:22,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601525494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:22,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:22,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:22,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539286496] [2022-11-21 16:12:22,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:22,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:22,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:22,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:22,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:22,994 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 336 [2022-11-21 16:12:22,995 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 252 transitions, 523 flow. Second operand has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:22,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:22,996 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 336 [2022-11-21 16:12:22,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:23,143 INFO L130 PetriNetUnfolder]: 31/522 cut-off events. [2022-11-21 16:12:23,143 INFO L131 PetriNetUnfolder]: For 21/23 co-relation queries the response was YES. [2022-11-21 16:12:23,145 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 522 events. 31/522 cut-off events. For 21/23 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1798 event pairs, 18 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 540. Up to 65 conditions per place. [2022-11-21 16:12:23,147 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 13 selfloop transitions, 2 changer transitions 0/251 dead transitions. [2022-11-21 16:12:23,147 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 251 transitions, 551 flow [2022-11-21 16:12:23,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:23,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:23,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 830 transitions. [2022-11-21 16:12:23,151 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8234126984126984 [2022-11-21 16:12:23,151 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 830 transitions. [2022-11-21 16:12:23,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 830 transitions. [2022-11-21 16:12:23,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:23,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 830 transitions. [2022-11-21 16:12:23,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 276.6666666666667) internal successors, (830), 3 states have internal predecessors, (830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,157 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,157 INFO L175 Difference]: Start difference. First operand has 256 places, 252 transitions, 523 flow. Second operand 3 states and 830 transitions. [2022-11-21 16:12:23,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 251 transitions, 551 flow [2022-11-21 16:12:23,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 251 transitions, 550 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-21 16:12:23,164 INFO L231 Difference]: Finished difference. Result has 256 places, 251 transitions, 524 flow [2022-11-21 16:12:23,164 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=520, PETRI_DIFFERENCE_MINUEND_PLACES=254, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=256, PETRI_TRANSITIONS=251} [2022-11-21 16:12:23,165 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -55 predicate places. [2022-11-21 16:12:23,165 INFO L495 AbstractCegarLoop]: Abstraction has has 256 places, 251 transitions, 524 flow [2022-11-21 16:12:23,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,166 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:23,166 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:23,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:12:23,166 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:23,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:23,167 INFO L85 PathProgramCache]: Analyzing trace with hash 353765048, now seen corresponding path program 1 times [2022-11-21 16:12:23,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:23,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166208872] [2022-11-21 16:12:23,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:23,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:23,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:23,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:23,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166208872] [2022-11-21 16:12:23,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166208872] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:23,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:23,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:23,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878346040] [2022-11-21 16:12:23,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:23,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:23,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:23,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:23,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:23,230 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 336 [2022-11-21 16:12:23,231 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 251 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:23,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 336 [2022-11-21 16:12:23,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:23,410 INFO L130 PetriNetUnfolder]: 76/661 cut-off events. [2022-11-21 16:12:23,410 INFO L131 PetriNetUnfolder]: For 33/42 co-relation queries the response was YES. [2022-11-21 16:12:23,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 885 conditions, 661 events. 76/661 cut-off events. For 33/42 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 2827 event pairs, 25 based on Foata normal form. 1/580 useless extension candidates. Maximal degree in co-relation 802. Up to 108 conditions per place. [2022-11-21 16:12:23,416 INFO L137 encePairwiseOnDemand]: 329/336 looper letters, 18 selfloop transitions, 5 changer transitions 0/252 dead transitions. [2022-11-21 16:12:23,416 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 252 transitions, 577 flow [2022-11-21 16:12:23,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 821 transitions. [2022-11-21 16:12:23,418 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.814484126984127 [2022-11-21 16:12:23,419 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 821 transitions. [2022-11-21 16:12:23,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 821 transitions. [2022-11-21 16:12:23,419 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:23,419 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 821 transitions. [2022-11-21 16:12:23,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.6666666666667) internal successors, (821), 3 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,423 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,424 INFO L175 Difference]: Start difference. First operand has 256 places, 251 transitions, 524 flow. Second operand 3 states and 821 transitions. [2022-11-21 16:12:23,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 252 transitions, 577 flow [2022-11-21 16:12:23,426 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 252 transitions, 573 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:23,430 INFO L231 Difference]: Finished difference. Result has 253 places, 248 transitions, 524 flow [2022-11-21 16:12:23,431 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=514, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=243, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=253, PETRI_TRANSITIONS=248} [2022-11-21 16:12:23,432 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -58 predicate places. [2022-11-21 16:12:23,432 INFO L495 AbstractCegarLoop]: Abstraction has has 253 places, 248 transitions, 524 flow [2022-11-21 16:12:23,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.0) internal successors, (801), 3 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,433 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:23,433 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:23,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:12:23,433 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:23,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:23,434 INFO L85 PathProgramCache]: Analyzing trace with hash 665837818, now seen corresponding path program 1 times [2022-11-21 16:12:23,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:23,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315853587] [2022-11-21 16:12:23,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:23,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:23,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:23,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:23,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315853587] [2022-11-21 16:12:23,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315853587] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:23,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:23,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:23,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908486844] [2022-11-21 16:12:23,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:23,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:23,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:23,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:23,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:23,507 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 336 [2022-11-21 16:12:23,508 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 248 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,508 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:23,508 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 336 [2022-11-21 16:12:23,508 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:23,682 INFO L130 PetriNetUnfolder]: 91/715 cut-off events. [2022-11-21 16:12:23,682 INFO L131 PetriNetUnfolder]: For 62/95 co-relation queries the response was YES. [2022-11-21 16:12:23,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 982 conditions, 715 events. 91/715 cut-off events. For 62/95 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 3230 event pairs, 62 based on Foata normal form. 0/636 useless extension candidates. Maximal degree in co-relation 897. Up to 179 conditions per place. [2022-11-21 16:12:23,686 INFO L137 encePairwiseOnDemand]: 332/336 looper letters, 17 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2022-11-21 16:12:23,687 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 249 transitions, 565 flow [2022-11-21 16:12:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:23,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:23,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 826 transitions. [2022-11-21 16:12:23,690 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8194444444444444 [2022-11-21 16:12:23,690 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 826 transitions. [2022-11-21 16:12:23,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 826 transitions. [2022-11-21 16:12:23,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:23,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 826 transitions. [2022-11-21 16:12:23,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 275.3333333333333) internal successors, (826), 3 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,695 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,695 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,696 INFO L175 Difference]: Start difference. First operand has 253 places, 248 transitions, 524 flow. Second operand 3 states and 826 transitions. [2022-11-21 16:12:23,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 249 transitions, 565 flow [2022-11-21 16:12:23,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 249 transitions, 555 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:23,704 INFO L231 Difference]: Finished difference. Result has 252 places, 248 transitions, 524 flow [2022-11-21 16:12:23,705 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=246, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=524, PETRI_PLACES=252, PETRI_TRANSITIONS=248} [2022-11-21 16:12:23,705 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -59 predicate places. [2022-11-21 16:12:23,705 INFO L495 AbstractCegarLoop]: Abstraction has has 252 places, 248 transitions, 524 flow [2022-11-21 16:12:23,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,706 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:23,706 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:23,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-21 16:12:23,707 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:23,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:23,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1626446397, now seen corresponding path program 1 times [2022-11-21 16:12:23,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:23,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325856306] [2022-11-21 16:12:23,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:23,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:23,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:23,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:23,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325856306] [2022-11-21 16:12:23,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325856306] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:23,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:23,787 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:23,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086926809] [2022-11-21 16:12:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:23,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:23,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:23,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:23,789 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 336 [2022-11-21 16:12:23,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 248 transitions, 524 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:23,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 336 [2022-11-21 16:12:23,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:23,951 INFO L130 PetriNetUnfolder]: 91/601 cut-off events. [2022-11-21 16:12:23,951 INFO L131 PetriNetUnfolder]: For 55/66 co-relation queries the response was YES. [2022-11-21 16:12:23,953 INFO L83 FinitePrefix]: Finished finitePrefix Result has 879 conditions, 601 events. 91/601 cut-off events. For 55/66 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2530 event pairs, 25 based on Foata normal form. 6/568 useless extension candidates. Maximal degree in co-relation 796. Up to 116 conditions per place. [2022-11-21 16:12:23,955 INFO L137 encePairwiseOnDemand]: 329/336 looper letters, 15 selfloop transitions, 5 changer transitions 5/249 dead transitions. [2022-11-21 16:12:23,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 249 transitions, 575 flow [2022-11-21 16:12:23,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:23,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:23,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2022-11-21 16:12:23,958 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8134920634920635 [2022-11-21 16:12:23,958 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2022-11-21 16:12:23,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2022-11-21 16:12:23,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:23,959 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2022-11-21 16:12:23,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,962 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,963 INFO L175 Difference]: Start difference. First operand has 252 places, 248 transitions, 524 flow. Second operand 3 states and 820 transitions. [2022-11-21 16:12:23,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 249 transitions, 575 flow [2022-11-21 16:12:23,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 251 places, 249 transitions, 575 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-21 16:12:23,969 INFO L231 Difference]: Finished difference. Result has 251 places, 240 transitions, 517 flow [2022-11-21 16:12:23,971 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=518, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=517, PETRI_PLACES=251, PETRI_TRANSITIONS=240} [2022-11-21 16:12:23,972 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -60 predicate places. [2022-11-21 16:12:23,972 INFO L495 AbstractCegarLoop]: Abstraction has has 251 places, 240 transitions, 517 flow [2022-11-21 16:12:23,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:23,972 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:23,972 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:23,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-21 16:12:23,973 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:23,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:23,973 INFO L85 PathProgramCache]: Analyzing trace with hash -306471511, now seen corresponding path program 1 times [2022-11-21 16:12:23,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:23,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121977598] [2022-11-21 16:12:23,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:23,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:24,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:24,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:24,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121977598] [2022-11-21 16:12:24,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121977598] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:24,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:24,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:24,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205773383] [2022-11-21 16:12:24,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:24,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:24,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:24,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:24,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:24,058 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 336 [2022-11-21 16:12:24,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 240 transitions, 517 flow. Second operand has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:24,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:24,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 336 [2022-11-21 16:12:24,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:24,256 INFO L130 PetriNetUnfolder]: 89/715 cut-off events. [2022-11-21 16:12:24,256 INFO L131 PetriNetUnfolder]: For 78/88 co-relation queries the response was YES. [2022-11-21 16:12:24,259 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 715 events. 89/715 cut-off events. For 78/88 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 3352 event pairs, 53 based on Foata normal form. 0/660 useless extension candidates. Maximal degree in co-relation 984. Up to 146 conditions per place. [2022-11-21 16:12:24,261 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 19 selfloop transitions, 2 changer transitions 0/243 dead transitions. [2022-11-21 16:12:24,262 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 247 places, 243 transitions, 574 flow [2022-11-21 16:12:24,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:24,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:24,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-11-21 16:12:24,264 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8045634920634921 [2022-11-21 16:12:24,264 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-11-21 16:12:24,264 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-11-21 16:12:24,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:24,265 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-11-21 16:12:24,267 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:24,269 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:24,270 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:24,270 INFO L175 Difference]: Start difference. First operand has 251 places, 240 transitions, 517 flow. Second operand 3 states and 811 transitions. [2022-11-21 16:12:24,270 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 247 places, 243 transitions, 574 flow [2022-11-21 16:12:24,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 243 transitions, 560 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:24,276 INFO L231 Difference]: Finished difference. Result has 245 places, 239 transitions, 509 flow [2022-11-21 16:12:24,276 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=505, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=509, PETRI_PLACES=245, PETRI_TRANSITIONS=239} [2022-11-21 16:12:24,277 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -66 predicate places. [2022-11-21 16:12:24,278 INFO L495 AbstractCegarLoop]: Abstraction has has 245 places, 239 transitions, 509 flow [2022-11-21 16:12:24,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:24,278 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:24,278 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:24,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-21 16:12:24,279 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:24,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1855811761, now seen corresponding path program 1 times [2022-11-21 16:12:24,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:24,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580287749] [2022-11-21 16:12:24,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:24,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:24,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:24,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:24,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:24,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580287749] [2022-11-21 16:12:24,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580287749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:24,847 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:24,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:12:24,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985364160] [2022-11-21 16:12:24,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:24,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:12:24,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:24,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:12:24,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:24,852 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 336 [2022-11-21 16:12:24,853 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 239 transitions, 509 flow. Second operand has 6 states, 6 states have (on average 249.83333333333334) internal successors, (1499), 6 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:24,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:24,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 336 [2022-11-21 16:12:24,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:25,496 INFO L130 PetriNetUnfolder]: 355/1104 cut-off events. [2022-11-21 16:12:25,497 INFO L131 PetriNetUnfolder]: For 153/210 co-relation queries the response was YES. [2022-11-21 16:12:25,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1909 conditions, 1104 events. 355/1104 cut-off events. For 153/210 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 5582 event pairs, 56 based on Foata normal form. 15/1028 useless extension candidates. Maximal degree in co-relation 1823. Up to 258 conditions per place. [2022-11-21 16:12:25,504 INFO L137 encePairwiseOnDemand]: 331/336 looper letters, 54 selfloop transitions, 4 changer transitions 0/262 dead transitions. [2022-11-21 16:12:25,505 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 262 transitions, 703 flow [2022-11-21 16:12:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:12:25,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:12:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1537 transitions. [2022-11-21 16:12:25,509 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7624007936507936 [2022-11-21 16:12:25,509 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1537 transitions. [2022-11-21 16:12:25,509 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1537 transitions. [2022-11-21 16:12:25,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:25,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1537 transitions. [2022-11-21 16:12:25,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 256.1666666666667) internal successors, (1537), 6 states have internal predecessors, (1537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 336.0) internal successors, (2352), 7 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,517 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 336.0) internal successors, (2352), 7 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,518 INFO L175 Difference]: Start difference. First operand has 245 places, 239 transitions, 509 flow. Second operand 6 states and 1537 transitions. [2022-11-21 16:12:25,518 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 262 transitions, 703 flow [2022-11-21 16:12:25,520 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 262 transitions, 699 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:25,523 INFO L231 Difference]: Finished difference. Result has 247 places, 238 transitions, 511 flow [2022-11-21 16:12:25,523 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=503, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=238, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=511, PETRI_PLACES=247, PETRI_TRANSITIONS=238} [2022-11-21 16:12:25,524 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -64 predicate places. [2022-11-21 16:12:25,524 INFO L495 AbstractCegarLoop]: Abstraction has has 247 places, 238 transitions, 511 flow [2022-11-21 16:12:25,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 249.83333333333334) internal successors, (1499), 6 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,525 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:25,525 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:25,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-21 16:12:25,525 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err23ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:25,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:25,526 INFO L85 PathProgramCache]: Analyzing trace with hash -992721612, now seen corresponding path program 1 times [2022-11-21 16:12:25,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:25,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341177845] [2022-11-21 16:12:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:25,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:25,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:25,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:25,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:25,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341177845] [2022-11-21 16:12:25,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341177845] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:25,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:25,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:12:25,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913823920] [2022-11-21 16:12:25,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:25,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:12:25,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:25,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:12:25,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:12:25,618 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 336 [2022-11-21 16:12:25,619 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 238 transitions, 511 flow. Second operand has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,620 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:25,620 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 336 [2022-11-21 16:12:25,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:25,794 INFO L130 PetriNetUnfolder]: 97/575 cut-off events. [2022-11-21 16:12:25,794 INFO L131 PetriNetUnfolder]: For 55/58 co-relation queries the response was YES. [2022-11-21 16:12:25,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 870 conditions, 575 events. 97/575 cut-off events. For 55/58 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2419 event pairs, 60 based on Foata normal form. 0/545 useless extension candidates. Maximal degree in co-relation 786. Up to 174 conditions per place. [2022-11-21 16:12:25,799 INFO L137 encePairwiseOnDemand]: 333/336 looper letters, 19 selfloop transitions, 2 changer transitions 0/241 dead transitions. [2022-11-21 16:12:25,799 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 241 transitions, 564 flow [2022-11-21 16:12:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:12:25,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-21 16:12:25,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-11-21 16:12:25,802 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8045634920634921 [2022-11-21 16:12:25,802 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-11-21 16:12:25,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-11-21 16:12:25,803 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:25,803 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-11-21 16:12:25,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,808 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 336.0) internal successors, (1344), 4 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,808 INFO L175 Difference]: Start difference. First operand has 247 places, 238 transitions, 511 flow. Second operand 3 states and 811 transitions. [2022-11-21 16:12:25,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 241 transitions, 564 flow [2022-11-21 16:12:25,811 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 241 transitions, 557 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-21 16:12:25,814 INFO L231 Difference]: Finished difference. Result has 244 places, 237 transitions, 506 flow [2022-11-21 16:12:25,814 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=237, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=506, PETRI_PLACES=244, PETRI_TRANSITIONS=237} [2022-11-21 16:12:25,815 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -67 predicate places. [2022-11-21 16:12:25,816 INFO L495 AbstractCegarLoop]: Abstraction has has 244 places, 237 transitions, 506 flow [2022-11-21 16:12:25,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 267.6666666666667) internal successors, (803), 3 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:25,816 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-21 16:12:25,816 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:25,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-21 16:12:25,817 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, thread1Err1ASSERT_VIOLATIONDATA_RACE, thread1Err2ASSERT_VIOLATIONDATA_RACE, thread1Err3ASSERT_VIOLATIONDATA_RACE (and 113 more)] === [2022-11-21 16:12:25,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:12:25,817 INFO L85 PathProgramCache]: Analyzing trace with hash -166134757, now seen corresponding path program 1 times [2022-11-21 16:12:25,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:12:25,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933343714] [2022-11-21 16:12:25,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:12:25,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:12:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:12:26,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:12:26,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:12:26,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933343714] [2022-11-21 16:12:26,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933343714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:12:26,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:12:26,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:12:26,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045077020] [2022-11-21 16:12:26,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:12:26,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:12:26,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:12:26,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:12:26,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:12:26,525 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 336 [2022-11-21 16:12:26,527 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 244 places, 237 transitions, 506 flow. Second operand has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:26,527 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-21 16:12:26,527 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 336 [2022-11-21 16:12:26,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-21 16:12:27,041 INFO L130 PetriNetUnfolder]: 309/1213 cut-off events. [2022-11-21 16:12:27,041 INFO L131 PetriNetUnfolder]: For 119/145 co-relation queries the response was YES. [2022-11-21 16:12:27,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1995 conditions, 1213 events. 309/1213 cut-off events. For 119/145 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7005 event pairs, 197 based on Foata normal form. 0/1117 useless extension candidates. Maximal degree in co-relation 1909. Up to 419 conditions per place. [2022-11-21 16:12:27,046 INFO L137 encePairwiseOnDemand]: 331/336 looper letters, 0 selfloop transitions, 0 changer transitions 248/248 dead transitions. [2022-11-21 16:12:27,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 248 transitions, 634 flow [2022-11-21 16:12:27,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:12:27,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-11-21 16:12:27,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1528 transitions. [2022-11-21 16:12:27,050 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.7579365079365079 [2022-11-21 16:12:27,051 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1528 transitions. [2022-11-21 16:12:27,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1528 transitions. [2022-11-21 16:12:27,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 16:12:27,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1528 transitions. [2022-11-21 16:12:27,055 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 254.66666666666666) internal successors, (1528), 6 states have internal predecessors, (1528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:27,058 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 336.0) internal successors, (2352), 7 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:27,059 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 336.0) internal successors, (2352), 7 states have internal predecessors, (2352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:27,059 INFO L175 Difference]: Start difference. First operand has 244 places, 237 transitions, 506 flow. Second operand 6 states and 1528 transitions. [2022-11-21 16:12:27,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 248 transitions, 634 flow [2022-11-21 16:12:27,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 246 places, 248 transitions, 630 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-21 16:12:27,063 INFO L231 Difference]: Finished difference. Result has 246 places, 0 transitions, 0 flow [2022-11-21 16:12:27,064 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=336, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=236, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=236, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=246, PETRI_TRANSITIONS=0} [2022-11-21 16:12:27,064 INFO L288 CegarLoopForPetriNet]: 311 programPoint places, -65 predicate places. [2022-11-21 16:12:27,064 INFO L495 AbstractCegarLoop]: Abstraction has has 246 places, 0 transitions, 0 flow [2022-11-21 16:12:27,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 250.83333333333334) internal successors, (1505), 6 states have internal predecessors, (1505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:12:27,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (116 of 117 remaining) [2022-11-21 16:12:27,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (115 of 117 remaining) [2022-11-21 16:12:27,068 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (114 of 117 remaining) [2022-11-21 16:12:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (113 of 117 remaining) [2022-11-21 16:12:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (112 of 117 remaining) [2022-11-21 16:12:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (111 of 117 remaining) [2022-11-21 16:12:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (110 of 117 remaining) [2022-11-21 16:12:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (109 of 117 remaining) [2022-11-21 16:12:27,069 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (108 of 117 remaining) [2022-11-21 16:12:27,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (107 of 117 remaining) [2022-11-21 16:12:27,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (106 of 117 remaining) [2022-11-21 16:12:27,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (105 of 117 remaining) [2022-11-21 16:12:27,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (104 of 117 remaining) [2022-11-21 16:12:27,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (103 of 117 remaining) [2022-11-21 16:12:27,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (102 of 117 remaining) [2022-11-21 16:12:27,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (101 of 117 remaining) [2022-11-21 16:12:27,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (100 of 117 remaining) [2022-11-21 16:12:27,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (99 of 117 remaining) [2022-11-21 16:12:27,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (98 of 117 remaining) [2022-11-21 16:12:27,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONDATA_RACE (97 of 117 remaining) [2022-11-21 16:12:27,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONDATA_RACE (96 of 117 remaining) [2022-11-21 16:12:27,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONDATA_RACE (95 of 117 remaining) [2022-11-21 16:12:27,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONDATA_RACE (94 of 117 remaining) [2022-11-21 16:12:27,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONDATA_RACE (93 of 117 remaining) [2022-11-21 16:12:27,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (92 of 117 remaining) [2022-11-21 16:12:27,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (91 of 117 remaining) [2022-11-21 16:12:27,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (90 of 117 remaining) [2022-11-21 16:12:27,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (89 of 117 remaining) [2022-11-21 16:12:27,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (88 of 117 remaining) [2022-11-21 16:12:27,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (87 of 117 remaining) [2022-11-21 16:12:27,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (86 of 117 remaining) [2022-11-21 16:12:27,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (85 of 117 remaining) [2022-11-21 16:12:27,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (84 of 117 remaining) [2022-11-21 16:12:27,073 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (83 of 117 remaining) [2022-11-21 16:12:27,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (82 of 117 remaining) [2022-11-21 16:12:27,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (81 of 117 remaining) [2022-11-21 16:12:27,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (80 of 117 remaining) [2022-11-21 16:12:27,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (79 of 117 remaining) [2022-11-21 16:12:27,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (78 of 117 remaining) [2022-11-21 16:12:27,074 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (77 of 117 remaining) [2022-11-21 16:12:27,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (76 of 117 remaining) [2022-11-21 16:12:27,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (75 of 117 remaining) [2022-11-21 16:12:27,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (74 of 117 remaining) [2022-11-21 16:12:27,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (73 of 117 remaining) [2022-11-21 16:12:27,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (72 of 117 remaining) [2022-11-21 16:12:27,075 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (71 of 117 remaining) [2022-11-21 16:12:27,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (70 of 117 remaining) [2022-11-21 16:12:27,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (69 of 117 remaining) [2022-11-21 16:12:27,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (68 of 117 remaining) [2022-11-21 16:12:27,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (67 of 117 remaining) [2022-11-21 16:12:27,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (66 of 117 remaining) [2022-11-21 16:12:27,076 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (65 of 117 remaining) [2022-11-21 16:12:27,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (64 of 117 remaining) [2022-11-21 16:12:27,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (63 of 117 remaining) [2022-11-21 16:12:27,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (62 of 117 remaining) [2022-11-21 16:12:27,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (61 of 117 remaining) [2022-11-21 16:12:27,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (60 of 117 remaining) [2022-11-21 16:12:27,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONDATA_RACE (59 of 117 remaining) [2022-11-21 16:12:27,077 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONDATA_RACE (58 of 117 remaining) [2022-11-21 16:12:27,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONDATA_RACE (57 of 117 remaining) [2022-11-21 16:12:27,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONDATA_RACE (56 of 117 remaining) [2022-11-21 16:12:27,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONDATA_RACE (55 of 117 remaining) [2022-11-21 16:12:27,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONDATA_RACE (54 of 117 remaining) [2022-11-21 16:12:27,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONDATA_RACE (53 of 117 remaining) [2022-11-21 16:12:27,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONDATA_RACE (52 of 117 remaining) [2022-11-21 16:12:27,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONDATA_RACE (51 of 117 remaining) [2022-11-21 16:12:27,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONDATA_RACE (50 of 117 remaining) [2022-11-21 16:12:27,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (49 of 117 remaining) [2022-11-21 16:12:27,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (48 of 117 remaining) [2022-11-21 16:12:27,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONDATA_RACE (47 of 117 remaining) [2022-11-21 16:12:27,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONDATA_RACE (46 of 117 remaining) [2022-11-21 16:12:27,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONDATA_RACE (45 of 117 remaining) [2022-11-21 16:12:27,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONDATA_RACE (44 of 117 remaining) [2022-11-21 16:12:27,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONDATA_RACE (43 of 117 remaining) [2022-11-21 16:12:27,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONDATA_RACE (42 of 117 remaining) [2022-11-21 16:12:27,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONDATA_RACE (41 of 117 remaining) [2022-11-21 16:12:27,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONDATA_RACE (40 of 117 remaining) [2022-11-21 16:12:27,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONDATA_RACE (39 of 117 remaining) [2022-11-21 16:12:27,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONDATA_RACE (38 of 117 remaining) [2022-11-21 16:12:27,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONDATA_RACE (37 of 117 remaining) [2022-11-21 16:12:27,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONDATA_RACE (36 of 117 remaining) [2022-11-21 16:12:27,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONDATA_RACE (35 of 117 remaining) [2022-11-21 16:12:27,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONDATA_RACE (34 of 117 remaining) [2022-11-21 16:12:27,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONDATA_RACE (33 of 117 remaining) [2022-11-21 16:12:27,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONDATA_RACE (32 of 117 remaining) [2022-11-21 16:12:27,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONDATA_RACE (31 of 117 remaining) [2022-11-21 16:12:27,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONDATA_RACE (30 of 117 remaining) [2022-11-21 16:12:27,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err18ASSERT_VIOLATIONDATA_RACE (29 of 117 remaining) [2022-11-21 16:12:27,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err19ASSERT_VIOLATIONDATA_RACE (28 of 117 remaining) [2022-11-21 16:12:27,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err20ASSERT_VIOLATIONDATA_RACE (27 of 117 remaining) [2022-11-21 16:12:27,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err21ASSERT_VIOLATIONDATA_RACE (26 of 117 remaining) [2022-11-21 16:12:27,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err22ASSERT_VIOLATIONDATA_RACE (25 of 117 remaining) [2022-11-21 16:12:27,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err23ASSERT_VIOLATIONDATA_RACE (24 of 117 remaining) [2022-11-21 16:12:27,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (23 of 117 remaining) [2022-11-21 16:12:27,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (22 of 117 remaining) [2022-11-21 16:12:27,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (21 of 117 remaining) [2022-11-21 16:12:27,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (20 of 117 remaining) [2022-11-21 16:12:27,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (19 of 117 remaining) [2022-11-21 16:12:27,086 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (18 of 117 remaining) [2022-11-21 16:12:27,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (17 of 117 remaining) [2022-11-21 16:12:27,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (16 of 117 remaining) [2022-11-21 16:12:27,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (15 of 117 remaining) [2022-11-21 16:12:27,087 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (14 of 117 remaining) [2022-11-21 16:12:27,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (13 of 117 remaining) [2022-11-21 16:12:27,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONDATA_RACE (12 of 117 remaining) [2022-11-21 16:12:27,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONDATA_RACE (11 of 117 remaining) [2022-11-21 16:12:27,089 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONDATA_RACE (10 of 117 remaining) [2022-11-21 16:12:27,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONDATA_RACE (9 of 117 remaining) [2022-11-21 16:12:27,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONDATA_RACE (8 of 117 remaining) [2022-11-21 16:12:27,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONDATA_RACE (7 of 117 remaining) [2022-11-21 16:12:27,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONDATA_RACE (6 of 117 remaining) [2022-11-21 16:12:27,090 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err18ASSERT_VIOLATIONDATA_RACE (5 of 117 remaining) [2022-11-21 16:12:27,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err19ASSERT_VIOLATIONDATA_RACE (4 of 117 remaining) [2022-11-21 16:12:27,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err20ASSERT_VIOLATIONDATA_RACE (3 of 117 remaining) [2022-11-21 16:12:27,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err21ASSERT_VIOLATIONDATA_RACE (2 of 117 remaining) [2022-11-21 16:12:27,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err22ASSERT_VIOLATIONDATA_RACE (1 of 117 remaining) [2022-11-21 16:12:27,091 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err23ASSERT_VIOLATIONDATA_RACE (0 of 117 remaining) [2022-11-21 16:12:27,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-21 16:12:27,092 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:12:27,101 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:12:27,101 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:12:27,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:12:27 BasicIcfg [2022-11-21 16:12:27,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:12:27,108 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:12:27,108 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:12:27,108 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:12:27,109 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:12:17" (3/4) ... [2022-11-21 16:12:27,111 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:12:27,117 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-11-21 16:12:27,117 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-11-21 16:12:27,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-21 16:12:27,125 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:12:27,126 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 16:12:27,126 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:12:27,196 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:12:27,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:12:27,197 INFO L158 Benchmark]: Toolchain (without parser) took 11543.83ms. Allocated memory was 155.2MB in the beginning and 358.6MB in the end (delta: 203.4MB). Free memory was 111.6MB in the beginning and 220.7MB in the end (delta: -109.1MB). Peak memory consumption was 95.5MB. Max. memory is 16.1GB. [2022-11-21 16:12:27,197 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory was 124.3MB in the beginning and 124.2MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:12:27,198 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.28ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 98.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:12:27,198 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.90ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 95.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:12:27,198 INFO L158 Benchmark]: Boogie Preprocessor took 46.67ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 92.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:12:27,199 INFO L158 Benchmark]: RCFGBuilder took 1809.13ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 55.6MB in the end (delta: 36.8MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. [2022-11-21 16:12:27,199 INFO L158 Benchmark]: TraceAbstraction took 9169.13ms. Allocated memory was 155.2MB in the beginning and 358.6MB in the end (delta: 203.4MB). Free memory was 54.9MB in the beginning and 225.9MB in the end (delta: -171.0MB). Peak memory consumption was 158.7MB. Max. memory is 16.1GB. [2022-11-21 16:12:27,200 INFO L158 Benchmark]: Witness Printer took 88.75ms. Allocated memory is still 358.6MB. Free memory was 225.9MB in the beginning and 220.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:12:27,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory was 124.3MB in the beginning and 124.2MB in the end (delta: 80.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.28ms. Allocated memory is still 155.2MB. Free memory was 111.6MB in the beginning and 98.5MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.90ms. Allocated memory is still 155.2MB. Free memory was 98.5MB in the beginning and 95.2MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.67ms. Allocated memory is still 155.2MB. Free memory was 95.2MB in the beginning and 92.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1809.13ms. Allocated memory is still 155.2MB. Free memory was 92.4MB in the beginning and 55.6MB in the end (delta: 36.8MB). Peak memory consumption was 45.4MB. Max. memory is 16.1GB. * TraceAbstraction took 9169.13ms. Allocated memory was 155.2MB in the beginning and 358.6MB in the end (delta: 203.4MB). Free memory was 54.9MB in the beginning and 225.9MB in the end (delta: -171.0MB). Peak memory consumption was 158.7MB. Max. memory is 16.1GB. * Witness Printer took 88.75ms. Allocated memory is still 358.6MB. Free memory was 225.9MB in the beginning and 220.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 47]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 49]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 50]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 51]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 54]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 55]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 56]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 58]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 65]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 67]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 68]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 69]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 72]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 73]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 74]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 76]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 85]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 86]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 87]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 88]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 89]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 90]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 91]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 92]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 93]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 113]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 98]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 99]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 101]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 412 locations, 117 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 8.9s, OverallIterations: 21, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 86 mSDsluCounter, 169 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 88 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 580 IncrementalHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 88 mSolverCounterUnsat, 169 mSDtfsCounter, 580 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=644occurred in iteration=0, InterpolantAutomatonStates: 72, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 2116 NumberOfCodeBlocks, 2116 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 2095 ConstructedInterpolants, 0 QuantifiedInterpolants, 2408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 67 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-21 16:12:27,252 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de4aa571-1861-4995-b754-88ecde13954d/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE